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- Tsukikouju Kurokawa
An Accommodation nestled in a forest with beautiful moon views, where you can unwind and lose track of time in harmony with nature.
In a place where you can witness the most beautiful moon in Japan, we envisioned creating a hidden retreat, and that dream led us to the serene forest of Kurokawa Onsen. "Kurokawa Onsen Gokoro Tsukikouju" is a Property where you can enjoy moonlight bathing in an open-air Onsen, while gazing at the moon shining in the sky. On a vast 4,500-tsubo estate, there are only eight villas. Each Room is uniquely designed and decorated, filled with delightful surprises. With the sound of the wind through the forest and the chirping of birds as your background music, surround yourself with only what you love and what is delicious, and indulge in the comfort of letting time flow naturally. This is a Property that promises such luxurious moments for adults.
I’ve stayed at many Accommodations, but this was the first one that felt absolutely flawless!I fell in love at first sight with the stunning rock bath scenery on YouTube and made a Reservation for the Yoimachi Room. The open-air bath was spacious, and the view from it was so breathtaking it nearly brought me to tears. The hot spring water was silky-smooth, and my skin felt amazing!The food was also delicious, and even the rice tasted exceptional.The nikujaga served at breakfast was so good that I’d love to ask—if you don’t mind—whether the soy sauce you use is light soy sauce or a type used mainly in Kyushu.The Room was wonderfully quiet as well, and I could truly relax. I definitely want to come back for a special occasion. Next year, I’ll visit one of your sister properties too.
まこぴんく 8/13/2026We stayed at this Accommodation and were satisfied with everything. The luxurious L-shaped bath that extends from the Room to the outside is exceptional. The food, in particular, is delicious! If I may ask one thing, when moving guests’ private cars, please do not change the air-conditioning settings. When I got back into my car, it was set to LO with the fan on full blast and roaring. Thank you for your understanding. We look forward to visiting again.
ソースバンルージュ 7/27/2026
Facilities and Services
See All- Hot spring
- Room with Open-Air Bath
- Spa facility
| IN | 15:00~18:00 |
|---|---|
| OUT | 11:00 |
| Number of rooms | 8 rooms |
| Your child | Permitted |
| Pet | Not allowed |
| Pets are not allowed; however, service dogs are accepted. Please contact us at the time of your Reservation. |
Photo
See AllNotice from the Accommodation
*Even in the event of cancellation due to infectious diseases, a Cancellation Fee will be charged in accordance with the cancellation policy. Thank you for your understanding.*
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Introduction of the Accommodation

The meaning behind the name '月洸樹'
The character "洸" in the name of the Property combines "water" and "light." A place surrounded by abundant flowing water, the moonlight in the sky, and the greenery of the earth. Everything necessary from nature is present, and you will be protected by the laws of nature at the Property "Moon洸Tree."

A beautiful Japanese-modern Room with a serene atmosphere and the warmth of wood. Each unit is designed with a unique theme reflecting different eras, cultures, and tastes, offering delightful surprises. It is a space where you can relax comfortably while experiencing moments of joy and inspiration.

In addition to the indoor and open-air baths in each Room, we also offer an open-air bath at the mountaintop within the premises, where you can enjoy the scenery of Kurokawa. With the outer rim of Mount Aso to the south and the majestic mountains of Oguni to the north, this is a 360° open-air bath with natural hot spring water. The highlight is at night, where you can immerse yourself in the blissful moment under a sky full of stars and the radiant moonlight in the clear air. This is a luxurious open-air bath surrounded by Japan's four seasons and a sparkling starry sky.
Facilities and Equipment of Accommodation
- The room
- Hot Springs & Baths
- Facilities & Services
- Meal
Basic Information
| Taxes | A separate Hot Spring Tax is required. (150 yen per person) |
|---|---|
| Card information | VISA / MASTER / JCB / AMEX / DINERS / UnionPay |
| Pets | Not allowed Pets are not allowed; however, service dogs are accepted. Please contact us at the time of your Reservation. |
| Breakfast | There is no information about breakfast. |
| Your child | You can stay. *Please select the appropriate option for children based on age.*
[Upper elementary school] Ages 10–12: Children’s kaiseki meal
[Lower/middle elementary / Preschool / Meals & bedding included] Ages 2–9: Children’s lunch
[Infants & toddlers] Ages 0–2: No meals (bedding available)
Please note that guests aged 13 and over are charged at the adult rate. |
| Room service | Available for use Dinner and breakfast are served in your Room. |
| Common amenities |
|
| Facilities and Features |
|
| Esthetic Massage | Available ■Aesthetic Salon
Yuan Amatsu
Experience the rare “Himalayan Therapy,” available in only a few places across The whole country, which uses herbal-blended oils made primarily from alpine plants of the Himalayas to gently relax your entire body. We also offer soothing, all-hand treatments such as oil lymphatic drainage and head therapy, carefully easing both body and mind.
For Reservations, please contact us in advance.
*Same-day Reservations may be available depending on availability.* |
| Fitness gym | None |
| Open-air bath |
|
| Private bath |
|
| Room with Open-Air Bath |
|
| Room with Onsen Indoor Bath |
|
| Spring quality and benefits | Mildly alkaline simple hot spring Fatigue recovery, sensitivity to cold, neuralgia, rheumatism, and more ※Regarding the notation of "Gensen Kakenagashi" |
| Sauna | None |
| Hot stone spa | None |
| About Hygiene Measures | Tsukikouju Kurokawa – Hygiene Measures
- We regularly disinfect the building and guest rooms with alcohol-based sanitizer.
- Guest rooms are disinfected using ozone.
- During meals, our staff wear face shields while serving guests.
We kindly ask for your cooperation with the following:
- Hand sanitization by guests
- Check-in is conducted one group at a time, and we also ask guests to cooperate with temperature checks at that time. |
Reviews
- Rooms & Amenities4.56
- Facility4.52
- Hospitality & Service4.52
- Meals4.33
- Onsen & Bath4.79
- Satisfaction4.44
*Reviews that have been translated from Japanese.*
*Showing only reviews from 一休.com (Japanese) and Yahoo!トラベル.*
Access Information
Kumamoto Prefecture6777-2 Manganji, Minamioguni-machi, Aso-gun, Kumamoto, Japan
TEL:+81-50-3613-2324
By car: From Fukuoka Airport, take the Kyushu Expressway to Kusu IC, then Route 212 → Route 442 → Kurokawa Onsen (approx. 2 hours).
- Parking Information
- Fee
- Free for guests
- Parking time
- During your stay
- Parking space
- No restrictions
- Number of parking spaces
- 10 cars available outdoor
- Valet service
- Unavailable
- Pickup and drop-off information
- Available (Free)Free Shuttle Service is available within Kurokawa Onsen. Please make a Reservation in advance.
Frequently Asked Questions
Please provide information about Open-air bath.
・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring All baths in the property are 100% free-flowing natural Onsen, fed directly from the source. Every Room features both an open-air bath and an indoor bath. At the highest point of the grounds, you will also find the “Sky Open-Air Bath,” available for private use. As it is located at the highest elevation in Kurokawa Onsen, you can enjoy a sweeping panoramic view of Kyushu’s majestic mountain ranges. At night, soak under a glowing moon and a sky full of stars; in the early morning, enjoy the free-flowing waters with a sea of clouds below. *Reservation required.
What are the qualities and benefits of the hot spring water?
The spring quality and efficacy of the hot spring are as follows. ・Spring quality: Mildly alkaline simple hot spring ・Spring efficacy: Fatigue recovery, sensitivity to cold, neuralgia, rheumatism, and more
What kind of facilities and features are available?
There are the following facilities and features. Hot spring・Rooms with open-air baths available・Open-air bath・Free-flowing hot spring・Private bath・Spa facility・Free shuttle service・Room service
I would like to know the access information.
By car: From Fukuoka Airport, take the Kyushu Expressway to Kusu IC, then Route 212 → Route 442 → Kurokawa Onsen (approx. 2 hours).
Is parking available?
・Fee: Free for guests ・Parking Hours: During your stay ・Parking space: Length --- Vehicle width --- Vehicle height --- ・Number of parking spaces: 10 cars ・Valet Service: Unavailable Please note that there are some uneven steps on the way to our property, which may make access difficult for low-clearance vehicles.
Please provide information about Room with Onsen Indoor Bath.
・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring
Please provide information about Private bath.
・Hot spring: Available ・Free-flowing: Available ・Cloudy hot spring water: None ・Supplementary information: 100% natural hot spring Please contact us in advance to make a Reservation. Same-day Reservations may be available depending on availability. Usage time: 40 minutes per group.
Is an internet connection available?
Connection is possible. ・Wi-Fi is available. For more details, please refer to the room and plan information.
Do you have esthetic massages?
Yes, there is. ■Aesthetic Salon Yuan Amatsu Experience the rare “Himalayan Therapy,” available in only a few places across The whole country, which uses herbal-blended oils made primarily from alpine plants of the Himalayas to gently relax your entire body. We also offer soothing, all-hand treatments such as oil lymphatic drainage and head therapy, carefully easing both body and mind. For Reservations, please contact us in advance. *Same-day Reservations may be available depending on availability.*
What kind of hygiene management is being conducted?
Tsukikouju Kurokawa – Hygiene Measures - We regularly disinfect the building and guest rooms with alcohol-based sanitizer. - Guest rooms are disinfected using ozone. - During meals, our staff wear face shields while serving guests. We kindly ask for your cooperation with the following: - Hand sanitization by guests - Check-in is conducted one group at a time, and we also ask guests to cooperate with temperature checks at that time.
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